| 对CJJ／T81—98摩擦系数相关条文的修订建议 |
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| 引用本文： | 梁雅滨.对CJJ／T81—98摩擦系数相关条文的修订建议[J].煤气与热力,2011,31(2):22-23. |
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| 作者姓名： | 梁雅滨 |
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| 作者单位： | 中国市政工程华北设计研究总院,天津,300074 |
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| 摘 要： | 介绍了EN13941标准对直埋供热管道管线区摩擦层周围回填材料的技术要求及对应的摩擦系数，有别于我国现行标准CJJ／T81-98《城镇直埋供热管道工程技术规程》的相关规定。我国近年来进行的相关试验结果也证明了EN13941标准的正确性，建议对CJJ／T81-98的相关条文进行修订。
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| 关 键 词： | 回填材料 级配 摩擦系数 直埋供热管道 |
Suggestions for Revising Related Clauses of Friction Coefficient in CJJ/T 81-98 |
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| LIANG Yabin.Suggestions for Revising Related Clauses of Friction Coefficient in CJJ/T 81-98[J].Gas & Heat,2011,31(2):22-23. |
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| Authors: | LIANG Yabin |
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| Affiliation: | LIANG Yabin |
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| Abstract: | The technical requirement and corresponding friction coefficient of backfill material around friction layer for directly buried heat-supply pipeline in EN 13941 are introduced.They are different from the relevant provisions of Chinese current standard Technical Specification for Directly Buried Heating Pipeline Engineering in City(CJJ/T 81-98).The correctness of EN 13941 has been proved by the experimental results carried out in China.It is suggested that the related clauses in CJJ/T 81-98 should be revised... |
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| Keywords: | backfill material gradation friction coefficient directly buried heat-supply pipeline |
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